more and more people with type 2 diabetes are learning about long-acting levemir®. as my diabetes changed, it got harder to control my blood sugar. today, i'm asking about levemir®. vo: levemir® is an injectable insulin that can give you blood sugar control for up to 24 hours. and levemir® helps lower your a1c. levemir® lasts 42 days without refrigeration. that's 50% longer than lantus®, which lasts 28 days. levemir® comes in flextouch, the latest in insulin pen technology from novo nordisk. levemir® is a long-acting insulin used to control high blood sugar in adults and children with diabetes and is not recommended to treat diabetic ketoacidosis. do not use levemir® if you are allergic to any of its ingredients. the most common side effect is low blood sugar, which may cause symptoms such as sweating, shakiness, confusion, and headache. severe low blood sugar can be serious